Career
He represents the riding of Leeds—Grenville and has served as an Master in Public Policy since 2010. On September 10, 2015 he was named co Deputy Leader with Sylvia Jones. Clark was born in Brockville, Ontario on November 7, 1960.
Clark served as mayor of Brockville from 1982 to 1991.
First elected at age 22, he was the youngest mayor in Canada at the time. He later worked as an advertising salesman for the Brockville Recorder and Times, as an administrative assistant to Bob Runciman, and as the chief administrative officer of the township of Leeds and the Thousand Islands.
He was elected in a by-election on March 4, 2010 held to replace Bob Runciman who resigned to accept a position in the Canadian Senate. He was easily re-elected in 2011 and in 2014 both with large pluralities.